Revision [26359]
This is an old revision of PAE made by darkcity on 2013-02-26 11:31:34.
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HomePage > ComponentHowTo Components and HowTos > Storage Memory and Storage
PAE (Physical Address Extention)
Physical Address Extension (PAE) is a feature to allow (32-bit) x86 processors to access a physical address space larger than 4 gigabytes. This includes RAM {Random Access Memory} and memory mapped devices.
Sometimes referred to as PAE-Highmem.
When to use a PAE version of Puppy
If the computer has-
more than 4GB RAM then the PAE version is required to be able to access the whole memory.
4GB or less RAM memory then using the PAE version may be still possible/desirable. This is if the No Excute (see below) feature is required. Note, however, there may be a performance penalty using PAE (see Related Webpages).
Puppy Version
There are versions of Puppy Linux that have a PAE version available, including Puppy53 Puppy 5.3 Slacko and PrecisePuppy.
No Excute
PAE is not only more physical address space but also important for the "no execute" feature which disables execution of code that is marked as non-executable.
Compatibility
Older computers may not boot PAE versions of Puppy. Also, some applications are incompatible with it.
